Arthur Jensen on Giftedness and Genius

Genius requires giftedness (consisting essentially of some special aptitude or talent, such as mathematical, spatial, musical, or artistic talent). But obviously there are other antecedents that are elusive to us. Nonetheless, we do know of at least two key attributes, beyond ability, that appear to function as catalysts for the creation of that special class of behavioral products specifically indicative of genius. They are productivity and creativity.

Arthur Jensen